Twitter use by physicians, especially pathologists, continues to rapidly grow. Twitter provides an easy-to-use communications platform for rapid education, news, and networking that helps busy pathologists stay engaged and informed without taking up much time. Many pathologists see the benefits of joining Twitter but are unsure about how to get started, according to Dr. Jerad Gardner, who is leading a session on this topic at CAP18. In this CAPcast, Dr. Gardner discusses why Twitter is a powerful tool for pathologists, his experience on Twitter helping patients and colleagues, as well as how to confront some common challenges when getting started on this social media platform. For more information and to register for CAP18, please visit http://www.capannualmeeting.org.